fix nav

Author: paulohtb6

modules/ROOT/nav.adoc

@@ -86,7 +86,6 @@
 ***** xref:ai-agents:mcp/remote/manage-servers.adoc[Manage Servers]
 **** xref:ai-agents:mcp/remote/monitor-mcp-servers.adoc[Monitor MCP Servers]
 ***** xref:ai-agents:mcp/remote/scale-resources.adoc[Scale Resources]
-***** xref:ai-agents:mcp/remote/monitor-activity.adoc[Monitor Activity]
 **** xref:ai-agents:mcp/remote/pipeline-patterns.adoc[MCP Server Patterns]
 *** xref:ai-agents:mcp/local/index.adoc[Redpanda Cloud Management MCP Server]
 **** xref:ai-agents:mcp/local/overview.adoc[Overview]